Senior SRE: Proactive Reliability & Observability Lead

Mastercard; Swords; On-site; EUR 90,000 - 140,000; Full time

Job summary

Mastercard is seeking a Site Reliability Engineer (SRE) – Generalist to join our global engineering teams in Ireland. You will own reliability across applications and infrastructure, shaping incident prevention and observability.

As a senior engineer, you will analyze signals, build dashboards, automate toil, mentor peers, and collaborate with platform and infrastructure teams to reduce MTTD, MTTR and incident frequency.

Qualifications

• Strong ability to reason about systems end to end and connect behavior to infrastructure.
• Expertise in observability, monitoring, and troubleshooting with actionable insights.
• Proficiency in scripting and automation for reliability improvements.

Responsibilities

• Proactively design and evolve observability strategies with new data sources.
• Lead automation efforts to reduce manual toil and speed up feedback.
• Mentor engineers and influence early design decisions for reliability.
• Partner across teams to drive shared ownership of reliability outcomes.
• Lead incident investigations and drive concrete improvements.

Skills

Observability

SRE principles

Automation

Scripting

Linux

Networking

Containers

Kubernetes

Data analysis

Mentorship

Tools

Prometheus

Grafana

Jenkins

Terraform

Job description

Mastercard is seeking a Site Reliability Engineer (SRE) – Generalist to join our global engineering teams in Ireland. You will own reliability across applications and infrastructure, shaping incident prevention and observability.

As a senior engineer, you will analyze signals, build dashboards, automate toil, mentor peers, and collaborate with platform and infrastructure teams to reduce MTTD, MTTR and incident frequency.